A new bifunctional fluorescent sensor based on naphthalimide-functionalized silica nanoparticles for detection and adsorption of Cu2+ in aqueous solution. Issue 20 (25th September 2015)

• Record Type: Journal Article
• Authors: Zhang, Xiangyang; Shen, Youming; Zhang, Hui; Jin, Junling; Zhou, Shibiao
• Is Part Of: Analytical methods. Volume 7:Issue 20(2015)
• Page Start: 8925
• Page End: 8930
• Publication Date: 2015-09-25
• Subjects: Chemistry, Analytic -- Periodicals; Analytical biochemistry -- Periodicals; Chemical laboratories -- Standards -- Periodicals; 543.1905
• DOI: 10.1039/c5ay01481f
• Languages: English
• ISSNs: 1759-9660

Abstract

Abstract : A new bifunctional fluorescent sensor for Cu 2+ based on naphthalimide-functionalized silica nanoparticles (NF-SiO2 ) was designed and synthesized. Abstract : A new bifunctional fluorescent sensor for Cu 2+ based on naphthalimide-functionalized silica nanoparticles (NF-SiO2 ) was designed and synthesized.NF-SiO2 exhibits excellent fluorescence sensitivity and selectivity towards Cu 2+ over other metal ions in aqueous media, and it also shows a good adsorption capacity for Cu 2+ . Moreover, the detection limit ofNF-SiO2 for Cu 2+ is 1.5 × 10 −7 M (S/N = 3) and it can be easily recovered by treatment of a solution of EDTA. These results indicate that this fluorescent sensor may find potential and favorable applications for simple detection and efficient removal of Cu 2+ in toxicological and environmental fields.